How to use the maxminddb.compat.int_from_bytes function in maxminddb

def _decode_uint(self, size, offset):
        new_offset = offset + size
        uint_bytes = self._buffer[offset:new_offset]
        return int_from_bytes(uint_bytes), new_offset

def _decode_pointer(self, size, offset):
        pointer_size = ((size >> 3) & 0x3) + 1
        new_offset = offset + pointer_size
        pointer_bytes = self._buffer[offset:new_offset]
        packed = pointer_bytes if pointer_size == 4 else struct.pack(
            b'!c', byte_from_int(size & 0x7)) + pointer_bytes
        unpacked = int_from_bytes(packed)
        pointer = unpacked + self._pointer_base + \
            self._pointer_value_offset[pointer_size]
        if self._pointer_test:
            return pointer, new_offset
        (value, _) = self.decode(pointer)
        return value, new_offset

def _decode_uint(self, size, offset):
        new_offset = offset + size
        uint_bytes = self._buffer[offset:new_offset]
        return int_from_bytes(uint_bytes), new_offset